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SEER Inquiry System - Report
Produced: 10/11/2025 11:03 AM
Question 20140015
Inquiry Details
References:
Heme & Lymph Manual & DB
Question:
Primary site--Heme & Lymphoid Neoplasms: Is there an instruction missing under Rule PH22 of the 2014 Heme Manual that addresses when it might be appropriate to code primary site to C779 for a Stage II lymphoma? See discussion.
Discussion:
It appears there is no instruction under PH22 that covers Example 5 (The patient has a history of Stage II lymphoma, no other information is available). All the bulleted instructions are for organ and lymph node combination involvement. Was the 2010 Heme Rule PH31 (Code the primary site to lymph nodes, NOS (C779) when lymph node(s) are involved but no primary site/particular lymph node region is identified) supposed to be listed under PH22? There does appear to be an empty bullet on the current web version.
Answer:
The 5th bullet under Rule PH 22 was inadvertently omitted. A corrected version of the Heme manual will be posted soon. Thank you for identifying this omission.
In the meantime, please add the following to PH22:
Code the primary site to lymph nodes, NOS (C779) when lymph node(s) are involved but no primary site/particular lymph node region is identified.
Cancer Site Category:
Heme & Lymphoid Neoplasms
Data Item Category:
Primary site
Other Category:
N/A
Year:
2014
